Permeation absorption sampler with multiple detection

Patent Application · Thu Mar 30 00:00:00 EST 1989

OSTI ID:6717765

Zaromb, S

A system for detecting analytes in air or aqueous systems includes a permeation absorption preconcentrator sampler for the analytes and analyte detectors. The preconcentrator has an inner fluid-permeable container into which a charge of analyte-sorbing liquid is intermittently injected, and a fluid-impermeable outer container. The sample is passed through the outer container and around the inner container for trapping and preconcentrating the analyte in the sorbing liquid. The analyte can be detected photometrically by injecting with the sorbing material a reagent which reacts with the analyte to produce a characteristic color or fluorescence which is detected by illuminating the contents of the inner container with a light source and measured the absorbed or emitted light, or by producing a characteristic chemiluminescence which can be detected by a suitable light sensor. The analyte can also be detected amperometrically. Multiple inner containers may be provided into which a plurality of sorbing liquids are respectively introduced for simultaneously detecting different analytes. baffling may be provided in the outer container. A calibration technique is disclosed. 9 figs.

• Research Organization: Argonne National Lab., IL (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-31109-ENG-38
• Assignee: Dept. of Energy
• Patent Number(s): PATENTS-US-A7330654
• Application Number: ON: DE90015052; PPN: US 7-330654
• OSTI ID: 6717765
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
54 ENVIRONMENTAL SCIENCES
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
AIR
SAMPLING
GAS CHROMATOGRAPHY
DESIGN
ABSORPTION
AUTOMATION
CALIBRATION
COLOR
CONCENTRATION RATIO
CURRENT DENSITY
FIBER OPTICS
FLEXIBILITY
FLUORESCENCE
INVENTIONS
LIQUIDS
MEASURING METHODS
MICROPROCESSORS
OPERATION
PERMEABILITY
PHOTOMETERS
PORTABLE EQUIPMENT
RESPONSE FUNCTIONS
SENSITIVITY
CHROMATOGRAPHY
COMPUTERS
ELECTRONIC CIRCUITS
EQUIPMENT
FLUIDS
FUNCTIONS
GASES
LUMINESCENCE
MEASURING INSTRUMENTS
MECHANICAL PROPERTIES
MICROELECTRONIC CIRCUITS
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
PHYSICAL PROPERTIES
SEPARATION PROCESSES
TENSILE PROPERTIES
400102* - Chemical & Spectral Procedures
440102 - Radiation Instrumentation- Radiation Dosemeters
540110
990200 - Mathematics & Computers